Gem & Jewellery Mentors



GEMOLOGY
(DGIC+CGIC)



6 months | 5 days a week | Tues to Sat | Advanced Level
Grading | 4C'S + 5C's | Carat | Clarity | Colour | Cut | Country of Origin | Synthetics | Identification | Valuation | Treatments | Sorting | Market Terms



Get the trade oriented training with true, ethical and professional lab standards from India's First Master Trainer by the G&J S council of India with 37 years of Jewellery trade experience as legacy & adding 17 years of teaching experience.



Module 1: DIamond Grading & Identification course (DGIC)



  • Characteristics
  • Formation
  • Sources
  • Minning
  • Cutting & polishing Centres
  • Trading Centres
  • Crystal System
  • Physical Characteristics
  • Optical Properties
  • Clarity
    • Blemishes & Inclusions
    • Plotting & Identification
    • International Standard of Grading
  • Carat
    • Devices/ Tools
    • Estimation of Weight
    • Concept of Sieves
  • Colour
    • International Standard of Grading
    • Master stones & Procedure
  • Cut
    • Table %,
    • Crown Angle
    • Girdle Thickness,
    • pavilion Depth
    • Crown Height,
    • Total Depth
    • Culet Size
    • Polish & Symmetry
    • Excellent/Very Good/Good/Fair/Poor Standards
  • Fluorescence
  • Fancy Colour
  • Fancy Shapes
  • Pricing/ Valuation
  • Identification of Synthetics & Simulants
  • Synthetic Moissanite
  • Synthetic Diamond
  • Treatments
  • Market terms/ Indian Trade
  • Diamond Sorting
    • Rejection & selection
    • Series Making


MODULE 2: coloured gemstones IDENTIFICATION COURSE (cGIC)



  • Gemology
  • Minerals
  • Categories of Gemstones
  • General Observations
    • Colour, Transparency
    • Cutting Style, Phenomena
    • Luster, Dispersion, Heft
    • Assembled Stones
  • Physical characteristics
  • Crystallography
  • Light Theory/ Polarization
  • Inclusions- Characteristic/ Diagnostic
  • Equipments
  • Group/Specie/Variety
  • Gemstone Study Practical
    • Study of Minimum 850 Stones
  • Identification of Mines/Sources
  • Identification of Synthetics
    • Flame Fusion/Verneuil Process
    • Pulled / Czochralski, Skull Melt
    • Flux Hydrothermal / Bomb
    • Stones Synthesized
    • Characteristics/Manufacturers
    • Identification techniques Gem
  • Enhancement Techniques
    • Heat, Radiation,
    • Chemical Diffusion
    • Fracture Filling, Bleach,
    • Surface Modification
    • Surface Impregnation,
    • Laser Drilling
  • Fluorescence
  • Pricing/ Valuation
  • Treatments
  • Market Terms/ Indian Trade


Links....


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DGL

DELHI GEM & JEWELLERY INSTITUTE

2021, Bank Street Karol Bagh New Delhi 110005 India

ph: 91-9811267001,

91-9818246317

alt: 91-11-41546317

info@gemologyindia.com